الفهرس 
Effect on the vegetative
Volatile oil yieldOnly 14 pages are availabe for public view
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Abstract
The production of aromatic and medicinal plants extensively focused in the last few years. There is a return luck to use herbs in Pharmaceuticals and cosmetics. Both vitamins and hormones constitute a range of many different types of organic molecules which are essential to the proper functioning of the human and plants organism their absence or depletion gives rise to deficiency disease and, particularly with hormones, an excess can also be harmful (Trease and EvanS , 1984).
(Pokorna, 1984). Hence, the attention has been focused on the researchers of possibility of substitution with the biofertilizers and active materials.
Recently, a great attention has been focused on the possibility of using natural and safety substituents, i.e. yeast and vitamins in order to improve plant growth, flowering, chemical composition and yield and at the same time safe to human, animal and environment.